ChemFaces is a professional high-purity natural products manufacturer.
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More articles cited ChemFaces products.
Universite de Bordeaux15 Dec 2017;Auburn, Alabama2015 Aug 1Evid Based Complement Alternat Med.2017:7383104Eur J Pharm Sci. 2016 May 18; Journal of Pharmaceutical Analysis2016 May 5;
Pharmacological Reports31 May 2017Integr Med Res.2017 Dec;Phytomedicine1 March 2018;J Ethnopharmacol. 2017 Jul 12;University of Central Lancashire2017;
Biochem Systematics and EcologyOctober 2017;Sci Rep. 2017 Oct 11;J Chromatogr B Analyt Tec. Bio. Life Sci. 2018 Feb 17;J Basic Clin Physiol Pharmacol.2015 Aug 15
Our products had been exported to the following research institutions and universities, And still growing.
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||Alpha-cyperone is associated with the down-regulation of COX-2,IL-6,Nck-2,Cdc42 and Rac1, resulting in reduction of inflammation. which would be highly beneficial for treatment of inflammatory diseases such as AD. Alpha-cyperone is a promising inhibitor of Hla production by S. aureus and protects lung cells from this bacterium, it also shows inhibitory effects on adherence and invasion of avian pathogenic Escherichia coli O78 to chicken type II pneumocytes. |
||PGE | COX | NO | NOS | NF-kB | p65 | NF-kB | IL Receptor | ERK | TNF-α | JNK | p38MAPK|
|Vet Immunol Immunopathol. 2014 May 15;159(1-2):50-7. |
|Inhibitory effects of α-cyperone on adherence and invasion of avian pathogenic Escherichia coli O78 to chicken type II pneumocytes.[Pubmed: 24629766]|
METHODS AND RESULTS:
Avian pathogenic Escherichia coli (APEC) are extra-intestinal pathogenic E. coli, and usually cause avian septicemia through breaching the blood-gas barrier. Type II pneumocytes play an important role of maintaining the function of the blood-gas barrier. However, the mechanism of APEC injuring type II pneumocytes remains unclear. α-cyperone can inhibit lung cell injury induced by Staphylococcus aureus. In order to explore whether α-cyperone regulates the adherence and invasion of APEC-O78 to chicken type II pneumocytes, we successfully cultured chicken type II pneumocytes.
The results showed that α-cyperone significantly decreased the adherence of APEC-O78 to chicken type II pneumocytes. In addition, α-cyperone inhibited actin cytoskeleton polymerization induced by APEC-O78 through down regulating the expression of Nck-2, Cdc42 and Rac1. These results provide new evidence for the prevention of colibacillosis in chicken.
|J Microbiol Biotechnol. 2012 Aug;22(8):1170-6. |
|α-cyperone alleviates lung cell injury caused by Staphylococcus aureus via attenuation of α-hemolysin expression.[Pubmed: 22713997]|
METHODS AND RESULTS:
In this study, we aimed to evaluate the effect of α- cyperone on S. aureus. We used a hemolysin test to examine the hemolytic activity in supernatants of S. aureus cultured with increasing concentrations of α- cyperone. In addition, we evaluated the production of α- hemolysin (Hla) by Western blotting. Real-time RT-PCR was performed to test the expression of hla (the gene encoding Hla) and agr (accessory gene regulator). Furthermore, we investigated the protective effect of α- cyperone on Hla-induced injury of A549 lung cells by live/ dead and cytotoxicity assays. We showed that in the presence of subinhibitory concentrations of α-cyperone, Hla production was markedly inhibited. Moreover, α- cyperone protected lung cells from Hla-induced injury.
These findings indicate that α-cyperone is a promising inhibitor of Hla production by S. aureus and protects lung cells from this bacterium. Thus, α-cyperone may provide the basis for a new strategy to combat S. aureus pneumonia.
||The rhizomes of Cyperus rotundus L.
||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
||Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: firstname.lastname@example.org
||The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
Recent ChemFaces New Products and Compounds
Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals
Cell. 2018 Jan 11;172(1-2):249-261.e12. doi: 10.1016/j.cell.2017.12.019.PMID: 29328914
Mol Cell. 2017 Nov 16;68(4):673-685.e6. doi: 10.1016/j.molcel.2017.10.022.PMID: 29149595
Scientific Reports 2017 Dec 11;7(1):17332.doi: 10.1038/s41598-017-17427-6.PMID: 29230013
Molecules. 2017 Oct 27;22(11). pii: E1829.doi: 10.3390/molecules22111829.PMID: 29077044
J Cell Biochem. 2018 Feb;119(2):2231-2239.doi: 10.1002/jcb.26385. PMID: 28857247
Phytomedicine. 2018 Feb 1;40:37-47. doi: 10.1016/j.phymed.2017.12.030.PMID: 29496173
Calculate Dilution Ratios(Only for Reference)
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
|J Ethnopharmacol. 2013 May 2;147(1):208-14. |
|α-Cyperone, isolated from the rhizomes of Cyperus rotundus, inhibits LPS-induced COX-2 expression and PGE2 production through the negative regulation of NFκB signalling in RAW 264.7 cells.[Pubmed: 23500883]|
|The rhizomes of Cyperus rotundus (Cyperaceae) have been used in Asian traditional medicine for the treatment of several inflammatory diseases. However, the anti-inflammatory effects of α-cyperone, a major active compound of Cyperus rotundus, are poorly understood.
METHODS AND RESULTS:
PGE2 and cytokines released from cells were measured using an EIA assay kit. The expression of iNOS, COX-2, TNF-α, and IL-6 was measured by real-time RT-PCR and/or Western blot analysis. A luciferase assay was performed to measure the effect of α-cyperone on NFκB activity.
The n-hexane fraction of the 80% EtOH extract from the rhizomes of Cyperus rotundus was found to inhibit both NO and PGE2 production in RAW 264.7 cells. α-Cyperone isolated from the n-hexane fraction significantly inhibited PGE2 production by suppressing the LPS-induced expression of inducible COX-2 at both the mRNA and the protein levels. In contrast, α-cyperone had little effect on NO production and iNOS expression. Additionally, α-cyperone downregulated the production and mRNA expression of the inflammatory cytokine IL-6. Moreover, treatment with α-cyperone suppressed the transcriptional activity of NFκB and the nuclear translocation of the p65 NFκB subunit in LPS-induced RAW 264.7 cells.
The anti-inflammatory activity of α-cyperone is associated with the down-regulation of COX-2 and IL-6 via the negative regulation of the NFκB pathway in LPS-stimulated RAW 264.7 cells.
|Immunopharmacol Immunotoxicol. 2013 Apr;35(2):215-24. |
|Xiang-Qi-Tang and its active components exhibit anti-inflammatory and anticoagulant properties by inhibiting MAPK and NF-κB signaling pathways in LPS-treated rat cardiac microvascular endothelial cells.[Pubmed: 23171279 ]|
|Xiang-Qi-Tang (XQT) is a Chinese herbal formula containing Cyperus rotundus, Astragalus membranaceus and Andrographis paniculata. alpha-Cyperone (CYP), astragaloside IV (AS-IV) and andrographolide (AND) are the three major active components in this formula. XQT may modulate the inflammatory or coagulant responses. We therefore assessed the effects of XQT on lipopolysaccharide (LPS)-induced inflammatory model of rat cardiac microvascular endothelial cells (RCMECs).
METHODS AND RESULTS:
XQT, CYP, AS-IV and AND inhibited the production of tumor necrosis factor alpha (TNF-α), intercellular cell adhesion molecule-1 (ICAM-1) and plasminogen activator inhibitor-1 (PAI-1), and up-regulated the mRNA expression of Kruppel-like factor 2 (KLF2). XQT and CYP inhibited the secretion of tissue factor (TF). To further explore the mechanism, we found that XQT, or its active components CYP, AS-IV and AND significantly inhibited extracellular signal-regulated kinase (ERK), c-jun NH2-terminal kinase (JNK) and p38 phosphorylation protein expression as well as decreased the phosphorylation levels of nuclear factor κB (NF-κB) p65 proteins in LPS-stimulated RCMECs. These results suggested that XQT and its active components inhibited the expression of inflammatory and coagulant mediators via mitogen-activated protein kinase (MAPKs) and NF-κB signaling pathways.
These findings may contribute to future research on the action mechanisms of this formula, as well as therapy for inflammation- or coagulation-related diseases.